27
Section 5: Maintenance
7. There are two holes in the reverse
adjustable link (S, Figure 5-15). Push
inward on the reverse idler arm (K) and
install the clevis pin (R) through the inner
hole in the reverse adjustable link (S) and
out through the single hole in the reverse
idler arm (K). Secure the clevis pin with
the hairpin cotter.
8. Reinstall the reverse belt (P, Figure 5-13)
on the reverse (upper) pulley, making
sure the belt is located to the inside of the
reverse idler pulley (L, Figure 5-13).
9. Reinstall the belt cover and secure it
with the two nuts.
IMPORTANT: If, in future tests for
reverse belt tension, the guide mark
should again align with or move to the
right side of the guide pin, it means that
the reverse belt is worn beyond adjust-
ment. Before installing a new belt, you
must return the clevis pin to the OUTSIDE
hole in the reverse adjustable link.
FORWARD DRIVE BELT REMOVAL
AND INSTALLATION
This model has two forward speeds (High
and Low) and one reverse speed. The
forward engine pulley (D, Figure 5-16) has
two grooves for the two forward speeds.
The reverse engine pulley (A, Figure 5-16)
has one groove for the one reverse speed.
The transmission pulley (C, Figure 5-16)
has three grooves. The groove closest to
the engine is for the reverse belt. The
middle groove is for the High speed
forward belt range; the rearmost groove is
for the Low speed forward belt range.
A. Removing the Forward Drive Belt:
1. Stop the engine, allow it to cool and
disconnect the spark plug wire before
working near the belts.
2. Remove the reverse drive belt
(A, Figure 5-16) by following the “Remov-
ing the Reverse Drive Belt” instructions in
this section.
3. Move the forward drive belt (B, Figure
5-16) completely off the engine forward
drive pulley (D).
4. Slip the forward drive belt completely
off the transmission drive pulley (C,
Figure 5-16) by moving it to the front of
the pulley.
5. Pull the forward drive belt up and off
the pulleys by feeding the bottom half of
the belt in between the engine and trans-
mission pulleys.
B. Installing the Forward Drive Belt:
1. The reverse drive belt must be removed
before installing the forward drive belt.
2. Slip the forward drive belt down
between the rear of the engine forward
drive pulley (D, Figure 5-16) and feed the
bottom half in between the engine and
transmission pulleys (see Figure 5-17). Be
sure that the belt is to the inside of the
forward idler pulley and forward belt guide
(see J and I, Figure 5-12).
3. Slip the forward drive belt down and
over the front of the transmission pulley
(C, Figure 5-16). NOTE: For additional
working room, loosen the reverse belt
guide (V, Figure 5-12) and twist it out of
the way.
4. Put the lower half of the belt into the
High speed groove (middle groove) or the
Low speed groove (rearmost groove) of
the transmission pulley (C, Figure 5-16).
5. Put the upper half of the belt in the
High speed groove (groove closest to
engine) or the Low speed groove (rear-
most groove) of the engine forward drive
pulley (D, Figure 5-16)e.
IMPORTANT: Make sure that the forward
drive belt is to the inside of the wire belt
guide (I, Figure 5-12) and the forward
idler pulley (J, Figure 5-12).
6. If you loosened the belt guide, wait
until the reverse drive belt is installed
before securing the belt guide.
7. Install the reverse drive belt.
8. Install the belt cover and secure it with
the two nuts.
9. If you installed a new belt, check the
tension after two hours of operation.
Figure 5-15: Installing clevis pin in inside
hole of reverse adjustable link.
S
R
K
WARNING
Before inspecting, cleaning or servicing the unit, shut off engine, wait for all
parts to come to a complete stop, disconnect spark plug wire and move wire away from spark
plug. Failure to follow these instructions can result in serious personal injury or
property damage.
Figure 5-16: Belt drive system.
A
B
C
D
FRONT
REAR
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